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All Journal Jurnal Ekonomi Pembangunan REKAYASA Prosiding SI MaNIs (Seminar Nasional Integrasi Matematika dan Nilai-Nilai Islami) JFMR (Journal of Fisheries and Marine Research) Journal of Applied Data Sciences SEMINAR NASIONAL PENELITIAN DAN PENGABDIAN KEPADA MASYARAKAT
Evellin Dewi Lusiana, Evellin Dewi
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Mathematics Nursing Physics

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Penerapan Prosedur Firth untuk Mengatasi Pemisahan (Separation) pada Model Regresi Probit Biner Lusiana, Evellin Dewi; Amaliana, Luthfatul
Prosiding SI MaNIs (Seminar Nasional Integrasi Matematika dan Nilai-Nilai Islami) Vol 1 No 1 (2017): Prosiding SI MaNIs (Seminar Nasional Integrasi Matematika dan Nilai Islami )
Publisher : Mathematics Department

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (354.644 KB)

Abstract

Estimasi parameter model regresi probit dapat dilakukan dengan menggunakan metode Maximum Likelihood Estimation (MLE). Namun, metode MLE tidak dapat dipakai apabila dalam data mengandung pemisahan (separation) baik pemisahan sempurna (complete separation) maupun pemisahan tidak sempurna (quasi-complete separation) karena mengakibatkan hasil estimasi dengan metode MLE tidak konvergen. Salah satu upaya yang dapat dilakukan untuk mengatasi hal ini adalah dengan menggunakan pendekatan prosedur Firth yang pertama kali diusulkan oleh Firth (1993). Penelitian ini menggunakan data sekunder pemberian kredit oleh pemerintah terhadap petani rumput laut di Kabupaten Kupang dengan tujuh variabel independen. Pada pemeriksaan awal ditemukan bahwa data tersebut mengandung pemisahan kurang sempurna yang mengakibatkan estimasi parameter bersifat divergen. Setelah ditangani dengan pendekatan prosedur Firth, diperoleh estimasi parameter yang bersifat konvergen
SUSTAINABILITY ANALYSIS OF WHITELEG SHRIMP POND AQUACULTURE AT JATIRENGGO VILLAGE, LAMONGAN REGENCY Lusiana, Evellin Dewi; Musa, Muhammad; Mahmudi, Mohammad; Arsad, Sulastri; Buwono, Nanik Retno
Jurnal Ekonomi Pembangunan Vol 16, No 2 (2018): JURNAL EKONOMI PEMBANGUNAN
Publisher : Pusat Pengkajian Ekonomi dan Kebijakan Publik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (832.061 KB) | DOI: 10.22219/jep.v16i2.9054

Abstract

Whiteleg shrimp (Litopenaeus vannamei) is a fisheries commodity which has high economic value because of its high demand and easier cultivation. Lamongan regency is one of the minapolitan region in East Java Province, especially at Glagah district, Jatirenggo village which becomes the minapolist, with one of the superior commodities is whiteleg shrimp. The development of a certain village can be determined by village developing index or IDM which consists of three categories, they are left behind, developing, and advance village. Jatirenggo village has a village developing index (IDM) of 0.6080 which classified as developing category or category 2. Thus, in order to increase its status, the welfare of its people need to be considered. Whiteleg shrimp pond aquaculture can be one of the effort to increase the income of Jatirenggo’s. This study aims to analyze the sustainability of whiteleg shrimp aquaculture activity in Jatirenggo village according to ecology, socio-economic, technology-infrastructure, and institutional dimension. The used method was MDS Rapfish. The results showed that the whiteleg shrimp aquaculture in Jatirenggo village is classified as sustainable, or it means the situation in Jatirenggo village is suitable for a successful aquaculture. Thus, it can be expected to increase the income of the farmers.  
Analisis Dampak Kawasan Sentra Budidaya Lele Terpadu (KSBLT) Kabupaten Tuban di Kecamatan Merakurak Terhadap Usaha Budidaya Lele di Kecamatan Tuban Kurniawan, Andi; Pramudia, Zulkisam; Amin, Abdul Aziz; Nurjannah, Nurjannah; Hidayat, Wahyu; Kurniati, Evi; Lusiana, Evellin Dewi; Ardian, Gatot; Amenan, M
Rekayasa Vol 14, No 2: Agustus 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i2.11859

Abstract

As one of the efforts to increase production of catfish culture, the Government of Tuban Regency launched the establishment of The Integrated Catfish Cultivation Center Area (ICACA) in Merakurak Sub-District in 2018. The existence of ICACA makes the program to increase catfish aquaculture more coordinated and increase production of catfish cultivation in Tuban Regency. ICCCA not only has an impact on the aquaculture business in Merakurak District, but also in other sub-districts in Tuban Regency. However, studies that explore the impact of ICACA on aquaculture in other areas are rarely reported. This study analyzes the impact of the existence of ICACA on cultivation business in Tuban District in Tuban Regency. This study uses a descriptive method with a mixed method approach (qualitative and quantitative). The results of this study indicate the factors that are the impact of ICACA in Merakurak District on the development of catfish cultivation in Tuban District. Based on the analysis carried out in this study, the implementation of ICACA in Tuban Regency, especially related to the effect of ICACA on catfish cultivation in Tuban District, needs to be directed to the application of sustainable aquaculture based on the empowerment of local community groups.
UJI TOKSISITAS AKUT (LC50-96 JAM) Ekstrak Caulerpa Lentillifera Dengan Pelarut Metanol Dan Water Extract Terhadap Gula Darah Ikan Komet (C. Auratus) Hertika, Asus Maizar Suryanto; Andayani, Sri; Lusiana, Evellin Dewi; Putra, Renanda Baghaz Dzulhamdani Surya
JFMR (Journal of Fisheries and Marine Research) Vol. 6 No. 3 (2022): JFMR on December
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2022.006.03.5

Abstract

Caulerpa lentilifera merupakan makroalga atau sering disebut dengan anggur laut yang mudah ditemui di Indonesia. Berbagai aktivitas manfaat dari Anggur laut telah ditemukan untuk kegiatan akuakultur salah satunya yakni dalam peningkatan sistem imun ikan. Kajian penggunaan caulerpa sebagai imunostimulan yang efektif perlu dilakukan penelitian untuk menentukan dosis yang tepat untuk meningkatkan imune ikan. Uji toksisitas akut merupakan uji awal yang diperlukan untuk mengetahui dosis lethal ekstrak caulerpa. Hasil uji toksisitas akut dijadikan sebagai dasar penentuan dosis pada uji sub kronis yang selanjutnya akan diketahui dosis efektif dalam peningkatan imunitas ikan. Tujuan penelitian ini adalah untuk menganalisis toksisitas akut ekstrak pelarut yang berbeda yakni pelarut metanol dan pelarut water extract dan menguji pada kadar glukosa darah ikan sebagai indikator tingkat stress ikan. Metode yang digunakan dalam ekstraksi dengan menerapkan metode maserasi dengan pelarut metanol dan pelarut water extract. Uji toksisitas yang dilakukan yaitu metode penentuan LC50-96jamdengan analisis probit.  Metode ini dilakukan diawali dengan uji pendahuluan untuk menentukan ambang lethal atas dan ambang lethal bawah. Selanjutnya dilakukan uji sesungguhnya untuk menentukan nilai LC50-96jam . Pada proses uji toksisitas dilakukan pengamatan kadar glukosa darah ikan komet menggunakan kit blood glucose. Pada penelitian juga dilakukan pengukuran kualitas air seperti suhu, pH dan oksigen terlarut (DO). Hasil penelitian menunjukkan toksisitas akut tertinggi pada ekstrak Caulerpa lentilifera dengan pelarut Metanol sebesar 0,761 ppm. Selanjutnya kadar gula darah tertinggi didapatkan pada ekstrak Caulerpa lentilifera dengan pelarut Metanol sebesar 102 mg/dL pada konsentrasi 0,24 ppm. Parameter kualitas air menunjukkan bahwa pengukuran suhu, pH, oksigen terlarut (DO) didapatkan nilai masih dalam ambang batas untuk mendukung hidup ikan.   Caulerpa lentilifera is a sea grape like-macroalga that grows well in Indonesia. Many beneficial activities of sea grapes have been found for aquaculture, such as to increase fish immune system. However, Caulerpa lentilifera potency as an effective immunostimulant need to evaluate further to determine the proper dose to increase fish immunity. Acute toxicity test is the initial test needed to determine the lethal dose of Caulerpa lentilifera extract. The results then used as the basis to define the dose in the sub-chronic test and further to decide the effective dose in increasing fish immunity. The purpose of this study was to analyze the acute toxicity of different solvent extracts (methanol and water extract) and to evaluate the blood glucose levels of fish studied as an indicator of fish stress levels. The extraction method used was the maceration method . Toxicity test  was carried out to determine LC50-96hours with probit analysis. The toxicity preliminary test was performed to define the upper and the lower lethal threshold. The further toxicity test was carried out to determine the value of LC50-96hours. In the toxicity test process, the blood glucose levels of comet fish were observed using a blood glucose kit. In this study water quality parameters such as temperature, pH, and dissolved oxygen (DO) were also  asesses. The results showed that the highest acute toxicity was found at Caulerpa lentilifera extracted with methanol at 0.761 ppm. Furthermore, the highest blood sugar levels  at 102 mg/dL were found in Caulerpa lentilifera extracted with methanol of at a concentration 0.24 ppm. Water quality parameters indicate that the temperature, pH, and dissolved oxygen (DO) values ​​are still within the threshold to support fish life.
Using Machine Learning Approach to Cluster Marine Environmental Features of Lesser Sunda Island Lusiana, Evellin Dewi; Astutik, Suci; Nurjannah, Nurjannah; Sambah, Abu Bakar
Journal of Applied Data Sciences Vol 6, No 1: JANUARY 2025
Publisher : Bright Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47738/jads.v6i1.478

Abstract

Mapping marine ecosystems is acknowledged as a vital tool for implementing ecosystem services in practical situations. It provides a framework for effective marine spatial planning, enabling the designation of marine protected areas (MPAs) that consider ecological connectivity and habitat requirements. It also helps pinpoint areas of high biodiversity or ecological significance, allowing conservationists to prioritize these regions for protection and management. Numerous studies over decades have produced a vast amount of data that illustrates the features of the marine ecosystem. Therefore, the unsupervised learning is a promising technique to map marine ecosystem based on its environmental features. This study aims to compare unsupervised learning techniques to analyze marine environmental features in order to map marine ecosystem in Lesser Sunda waters. Eleven global environmental variables were accessed from global databases. The Lesser Sunda waters were delineated into groups according to their environmental characteristics using four unsupervised learning techniques: k-mean, fuzzy c-mean, self-organizing map (SOM), and density-based spatial clustering of applications with noise (DBSCAN). According to the findings, the Lesser Sunda waters can be divided into five to nine clusters, each with distinct environmental features. Moreover, the fuzzy c-mean method's clustering result outperformed the others based on the highest Silhouette (0.2204478) and Calinski-Harabasz (1741.099) Index. As an unsupervised learning technique, fuzzy c-mean clustering offered good performance in delineating Lesser Sunda Island marine waters with five clusters. The clustering results mostly consistent with existing conservation programs, even though there are several areas which needed international and multinational organization collaboration to effectively accomplish marine conservation objectives.
PENERAPAN MODEL REGRESI KUANTIL UNTUK MENGANALISIS HUBUNGAN PANJANG-BERAT IKAN NILA (Oreochromis niloticus) DI KOLAM IBAT PUNTEN, BATU Lusiana, Evellin Dewi; Musa, Muhammad; Ramadhan, Syahril
JFMR (Journal of Fisheries and Marine Research) Vol. 2 No. 3 (2018): JFMR
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2018.002.03.4

Abstract

Ikan Nila (Oreochromis niloticus) merupakan salah satu komoditas perikanan air tawar yang banyak digemari dan bersifat potensial dalam proses budidaya. Permintaan terhadap komoditas ini selalu meningkat, sehingga menjadi kesempatan bagi para pembudidaya untuk meningkatkan hasil produksi. Kondisi lingkungan perairan berperan penting dalam kelancaran proses budidaya ikan. Adapun salah satu cara yang bisa digunakan untuk menilai kondisi lingkungan perairan adalah melalui analisis hubungan panjang-berat. Hasil dari analisis hubungan tersebut yakni berupa faktor kondisi allometris dapat digunakan untuk menilai karakteristik fisiologis ikan, siklus hidup, kondisi lingkungan sekitar dan ketersediaan makanan. Umumnya, hubungan panjang berat dianalisis dengan pendekatan regresi linier sederhana di mana memiliki kelemahan yaitu sangat dipengaruhi oleh nilai ekstrim/outlier sehingga tidak mampu menggambarkan distribusi data secara keseluruhan. Oleh karena itu, penelitian ini bertujuan untuk menerapkan alternatif metode lain yaitu regresi kuantil yang mampu menjelaskan hubungan panjang-berat ikan secara lebih menyeluruh. Data sampel ikan yang digunakan berasal dari kolam IBAT Punten, Batu yang merupakan salah satu sentra pembenihan dan budidaya Ikan Nila. Hasil penelitian menunjukkan bahwa secara umum faktor kondisi allometris Ikan Nila di IBAT Punten bersifat allometris negatif, artinya pertambahan berat lebih kecil dibandingkan pertambahan panjang ikan atau dengan kata lain ikan cenderung kurus. Selain itu, dari analisis regresi kuantil didapatkan kecenderungan bahwa semakin besar ukuran ikan Nila maka nilai faktor kondisi allometris semakin kecil. Hal ini dikarenakan ikan Nila dewasa lebih rentan terhadap perubahan lingkungan dibandingkan dengan ikan Nila yang lebih kecil.
ANALISIS KELIMPAHAN FITOPLANKTON BERDASARKAN KETERSEDIAAN NUTRIEN DI RANU GRATI DENGAN GENERALIZED POISSON REGRESSION Lusiana, Evellin Dewi; Mahmudi, Mohammad; Buwono, Nanik Retno; Nisya, Tisya W.
JFMR (Journal of Fisheries and Marine Research) Vol. 5 No. 1 (2021): JFMR
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2021.005.01.12

Abstract

Fitoplankton adalah organisme akuatik yang memegang peranan penting di ekosistem perairan karena merupakan produsen utama dalam ratai makanan. Pertumbuhan fitoplankton sangat tergantung dari ketersediaan nutrient (nitrat dan fosfat) yang ada di perairan. Ranu Grati adalah danau vulkanis yang terletak di Jawa Timur yang banyak dimanfaatkan oleh masyarakat untuk berbagai aktivitas. Aktivitas-aktivitas tersebut umumnya menghasilkan bahan organik yang akan mempengaruhi konsentrasi nitrat dan fosfat sekaligus juga mempengaruhi struktur komunitas fitoplankton di perairan danau. Penelitian ini bertujuan untuk memodelkan hubungan kelimpahan fitoplankton dengan ketersediaan nutrient serta memprediksi komposisi fitoplankton berdasarkan divisi untuk mengetahui struktur komunitasnya dengan pendekatan Generalized Linear Regression. Hasil analisis menunjukkan bahwa nutrient yang berpengaruh signifikan terhadap jumlah amatan fitoplankton adalah konsentrasi fosfat, sedangkan kelimpahan fitoplankton di Ranu Grati cenderung didominasi oleh fitoplankton dari divisi Chlorophyta. 
ANALISIS HUBUNGAN KUALITAS AIR DAN KADAR GULA DARAH Gambusia affinis DI PERAIRAN SUNGAI BRANTAS Hertika, Asus Maizar Suryanto; Arfiati, Diana; Lusiana, Evellin Dewi; Baghaz Dzulhamdhani Surya Putra, Renanda
JFMR (Journal of Fisheries and Marine Research) Vol. 5 No. 3 (2021): JFMR
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2021.005.03.4

Abstract

Ikan merupakan salah satu biota perairan yang digunakan sebagai bioindikator karena sangat peka terhadap perubahan lingkungan perairan. Kondisi perairan yang tidak mendukung dapat menyebabkan stress pada ikan yang salah satunya ditandai oleh perubahan kadar gula darah ikan. Tujuan penelitian ini adalah untuk menganalisis hubungan kualitas perairan Sungai Brantas dengan kadar gula darah Ikan Gambusia (Gambusia affinis). Penelitian dilaksanakan pada sepuluh lokasi sampling di sepanjang aliran Sungai Brantas dengan mengukur enam parameter kualitas air (in-situ dan ex-situ) dan mengambil sampel Ikan Gambusia untuk diukur kadar gula darahnya. Hasil penelitian menunjukkan bahwa kadar gula darah tertinggi dan melampaui batas normal ditemukan pada sampel Ikan Gambusia yang ditangkap di wilayah Mojokerto. Kondisi ini berkaitan erat dengan rendahnya kadar DO dan tingginya konsentrasi BOD, ammonia, dan fenol di lokasi tersebut.
Penguatan Prestasi OSN Matematika SMP dan SMA melalui Kolaborasi Guru dan Siswa: Studi pada SMA Sumber Putih Kabupaten Malang Solimun, Solimun; Hapsari, Meilina Retno; Mudjiono, Mudjiono; Lusiana, Evellin Dewi; Hidayat, Kamelia; Sianipar, Celia; Zahra, Septi Nafisa Ulluya
Seminar Nasional Penelitian dan Pengabdian Kepada Masyarakat 2025 Prosiding Seminar Nasional Penelitian dan Pengabdian Kepada Masyarakat (SNPPKM 2025)
Publisher : Universitas Harapan Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35960/snppkm.v4i1.1332

Abstract

This community service program was designed to enhance the achievement of the National Science Olympiad in Mathematics through collaboration between teachers and students in Malang Regency. The background of this program lies in the limited availability of structured coaching, insufficient intensive mentoring by teachers, and the lack of competition simulations that hinder students’ academic readiness and mental resilience. The objective was to strengthen teacher competence and prepare students more effectively for the demands of Olympiad-level competitions. The program was implemented through seminars for teachers, intensive classes for students, collaborative discussion forums, competition simulations, and continuous evaluation using statistical-based monitoring. The results showed that teachers developed stronger skills in designing innovative and systematic coaching strategies, while students demonstrated improved readiness in facing challenging problems and competition pressure. The program also fostered a collaborative and participatory learning ecosystem that supports sustainable academic development. In conclusion, this initiative contributed to improving the quality of mathematics education in Malang Regency and provided a replicable model for Olympiad coaching in other schools and regions.
Co-Authors Abdul Aziz Amin Abu Bakar Sambah, Abu Bakar Amenan, M Andi Kurniawan Ardian, Gatot Arsad, Sulastri Asus Maizar Suryanto H Baghaz Dzulhamdhani Surya Putra, Renanda Diana Arfiati Evi Kurniati Hidayat, Kamelia Luthfatul Amaliana, Luthfatul Meilina Retno Hapsari Mohammad Mahmudi Mudjiono Mudjiono, Mudjiono Muhammad Musa Nanik Retno Buwono Nisya, Tisya W. Nurjannah Nurjannah Pramudia, Zulkisam Putra, Renanda Baghaz Dzulhamdani Surya Ramadhan, Syahril Sianipar, Celia Solimun, Solimun Sri Andayani Suci Astutik Wahyu Hidayat Zahra, Septi Nafisa Ulluya